| /* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */ |
| /* |
| * Mesa 3-D graphics library |
| * Version: 3.5 |
| * |
| * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Original authors: |
| * Keith Whitwell <keithw@valinux.com> |
| * |
| * Adapted to Mach64 by: |
| * José Fonseca <j_r_fonseca@yahoo.co.uk> |
| */ |
| |
| #include "math/m_translate.h" |
| |
| #ifndef LOCALVARS |
| #define LOCALVARS |
| #endif |
| |
| void TAG(translate_vertex)(GLcontext *ctx, |
| const VERTEX *src, |
| SWvertex *dst) |
| { |
| LOCALVARS |
| GLuint format = GET_VERTEX_FORMAT(); |
| UNVIEWPORT_VARS; |
| CARD32 *p = (CARD32 *)src + 10 - mmesa->vertex_size; |
| |
| dst->attrib[FRAG_ATTRIB_WPOS][3] = 1.0; |
| |
| switch ( format ) { |
| case TEX1_VERTEX_FORMAT: |
| #ifdef MACH64_PREMULT_TEXCOORDS |
| { |
| float rhw = 1.0 / LE32_IN_FLOAT( p + 2 ); |
| |
| dst->attrib[FRAG_ATTRIB_TEX1][0] = rhw*LE32_IN_FLOAT( p++ ); |
| dst->attrib[FRAG_ATTRIB_TEX1][1] = rhw*LE32_IN_FLOAT( p++ ); |
| } |
| #else |
| dst->attrib[FRAG_ATTRIB_TEX1][0] = LE32_IN_FLOAT( p++ ); |
| dst->attrib[FRAG_ATTRIB_TEX1][1] = LE32_IN_FLOAT( p++ ); |
| #endif |
| dst->attrib[FRAG_ATTRIB_TEX1][3] = 1.0; |
| p++; |
| |
| case TEX0_VERTEX_FORMAT: |
| #ifdef MACH64_PREMULT_TEXCOORDS |
| { |
| float rhw = 1.0 / LE32_IN_FLOAT( p + 2 ); |
| |
| dst->attrib[FRAG_ATTRIB_TEX0][0] = rhw*LE32_IN_FLOAT( p++ ); |
| dst->attrib[FRAG_ATTRIB_TEX0][1] = rhw*LE32_IN_FLOAT( p++ ); |
| } |
| #else |
| dst->attrib[FRAG_ATTRIB_TEX0][0] = LE32_IN_FLOAT( p++ ); |
| dst->attrib[FRAG_ATTRIB_TEX0][1] = LE32_IN_FLOAT( p++ ); |
| #endif |
| dst->attrib[FRAG_ATTRIB_TEX0][3] = 1.0; |
| dst->attrib[FRAG_ATTRIB_WPOS][3] = LE32_IN_FLOAT( p++ ); |
| |
| case NOTEX_VERTEX_FORMAT: |
| dst->attrib[FRAG_ATTRIB_COL1][2] = UBYTE_TO_FLOAT(((GLubyte *)p)[0]); |
| dst->attrib[FRAG_ATTRIB_COL1][1] = UBYTE_TO_FLOAT(((GLubyte *)p)[1]); |
| dst->attrib[FRAG_ATTRIB_COL1][0] = UBYTE_TO_FLOAT(((GLubyte *)p)[2]); |
| dst->attrib[FRAG_ATTRIB_FOGC][0] = ((GLubyte *)p)[3]; /*XXX int->float?*/ |
| p++; |
| |
| case TINY_VERTEX_FORMAT: |
| dst->attrib[FRAG_ATTRIB_WPOS][2] = UNVIEWPORT_Z( LE32_IN( p++ ) ); |
| |
| dst->color[2] = ((GLubyte *)p)[0]; |
| dst->color[1] = ((GLubyte *)p)[1]; |
| dst->color[0] = ((GLubyte *)p)[2]; |
| dst->color[3] = ((GLubyte *)p)[3]; |
| p++; |
| |
| { |
| GLuint xy = LE32_IN( p ); |
| |
| dst->attrib[FRAG_ATTRIB_WPOS][0] = UNVIEWPORT_X( (GLfloat)(GLshort)( xy >> 16 ) ); |
| dst->attrib[FRAG_ATTRIB_WPOS][1] = UNVIEWPORT_Y( (GLfloat)(GLshort)( xy & 0xffff ) ); |
| } |
| } |
| |
| assert( p + 1 - (CARD32 *)src == 10 ); |
| |
| dst->pointSize = ctx->Point.Size; |
| } |
| |
| |
| |
| void TAG(print_vertex)( GLcontext *ctx, const VERTEX *v ) |
| { |
| LOCALVARS |
| GLuint format = GET_VERTEX_FORMAT(); |
| CARD32 *p = (CARD32 *)v + 10 - mmesa->vertex_size; |
| |
| switch ( format ) { |
| case TEX1_VERTEX_FORMAT: |
| { |
| GLfloat u, v, w; |
| #ifdef MACH64_PREMULT_TEXCOORDS |
| float rhw = 1.0 / LE32_IN_FLOAT( p + 2 ); |
| |
| u = rhw*LE32_IN_FLOAT( p++ ); |
| v = rhw*LE32_IN_FLOAT( p++ ); |
| #else |
| u = LE32_IN_FLOAT( p++ ); |
| v = LE32_IN_FLOAT( p++ ); |
| #endif |
| w = LE32_IN_FLOAT( p++ ); |
| fprintf( stderr, "u1 %f v1 %f w1 %f\n", u, v, w ); |
| } |
| |
| case TEX0_VERTEX_FORMAT: |
| { |
| GLfloat u, v, w; |
| #ifdef MACH64_PREMULT_TEXCOORDS |
| float rhw = 1.0 / LE32_IN_FLOAT( p + 2 ); |
| |
| u = rhw*LE32_IN_FLOAT( p++ ); |
| v = rhw*LE32_IN_FLOAT( p++ ); |
| #else |
| u = LE32_IN_FLOAT( p++ ); |
| v = LE32_IN_FLOAT( p++ ); |
| #endif |
| w = LE32_IN_FLOAT( p++ ); |
| fprintf( stderr, "u0 %f v0 %f w0 %f\n", u, v, w ); |
| } |
| |
| case NOTEX_VERTEX_FORMAT: |
| { |
| GLubyte r, g, b, a; |
| |
| b = ((GLubyte *)p)[0]; |
| g = ((GLubyte *)p)[1]; |
| r = ((GLubyte *)p)[2]; |
| a = ((GLubyte *)p)[3]; |
| p++; |
| fprintf(stderr, "spec: r %d g %d b %d a %d\n", r, g, b, a); |
| } |
| |
| case TINY_VERTEX_FORMAT: |
| { |
| GLuint xy; |
| GLfloat x, y, z; |
| GLubyte r, g, b, a; |
| |
| z = LE32_IN( p++ ) / 65536.0; |
| |
| b = ((GLubyte *)p)[0]; |
| g = ((GLubyte *)p)[1]; |
| r = ((GLubyte *)p)[2]; |
| a = ((GLubyte *)p)[3]; |
| p++; |
| xy = LE32_IN( p ); |
| x = (GLfloat)(GLshort)( xy >> 16 ) / 4.0; |
| y = (GLfloat)(GLshort)( xy & 0xffff ) / 4.0; |
| |
| fprintf(stderr, "x %f y %f z %f\n", x, y, z); |
| fprintf(stderr, "r %d g %d b %d a %d\n", r, g, b, a); |
| } |
| } |
| |
| assert( p + 1 - (CARD32 *)v == 10 ); |
| |
| fprintf(stderr, "\n"); |
| } |
| |
| /* Interpolate the elements of the VB not included in typical hardware |
| * vertices. |
| * |
| * NOTE: All these arrays are guarenteed by tnl to be writeable and |
| * have good stride. |
| */ |
| #ifndef INTERP_QUALIFIER |
| #define INTERP_QUALIFIER static |
| #endif |
| |
| #define GET_COLOR(ptr, idx) ((ptr)->data[idx]) |
| |
| |
| INTERP_QUALIFIER void TAG(interp_extras)( GLcontext *ctx, |
| GLfloat t, |
| GLuint dst, GLuint out, GLuint in, |
| GLboolean force_boundary ) |
| { |
| LOCALVARS |
| struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; |
| |
| if (VB->ColorPtr[1]) { |
| assert(VB->ColorPtr[1]->stride == 4 * sizeof(GLfloat)); |
| |
| INTERP_4F( t, |
| GET_COLOR(VB->ColorPtr[1], dst), |
| GET_COLOR(VB->ColorPtr[1], out), |
| GET_COLOR(VB->ColorPtr[1], in) ); |
| |
| if (VB->SecondaryColorPtr[1]) { |
| INTERP_3F( t, |
| GET_COLOR(VB->SecondaryColorPtr[1], dst), |
| GET_COLOR(VB->SecondaryColorPtr[1], out), |
| GET_COLOR(VB->SecondaryColorPtr[1], in) ); |
| } |
| } |
| |
| if (VB->EdgeFlag) { |
| VB->EdgeFlag[dst] = VB->EdgeFlag[out] || force_boundary; |
| } |
| |
| INTERP_VERTEX(ctx, t, dst, out, in, force_boundary); |
| } |
| |
| INTERP_QUALIFIER void TAG(copy_pv_extras)( GLcontext *ctx, |
| GLuint dst, GLuint src ) |
| { |
| LOCALVARS |
| struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; |
| |
| if (VB->ColorPtr[1]) { |
| COPY_4FV( GET_COLOR(VB->ColorPtr[1], dst), |
| GET_COLOR(VB->ColorPtr[1], src) ); |
| |
| if (VB->SecondaryColorPtr[1]) { |
| COPY_4FV( GET_COLOR(VB->SecondaryColorPtr[1], dst), |
| GET_COLOR(VB->SecondaryColorPtr[1], src) ); |
| } |
| } |
| |
| COPY_PV_VERTEX(ctx, dst, src); |
| } |
| |
| |
| #undef INTERP_QUALIFIER |
| #undef GET_COLOR |
| |
| #undef IND |
| #undef TAG |